This Chain applies for all packets that are addressed to the firewall INPUT OUTPUT FORWARD This chain applies for all packets originating from firewall and going out of the server INPUT ⒸOUTPUT FORWARD This chain applies for all packets passing through the firewall from other hosts on the network. The host with iptables is neither the source nor destination of the packet: mainly used to route packets through the machines on the network. INPUT OUTPUT FORWARD

This Chain applies for all packets that are addressed to the firewall INPUT OUTPUT FORWARD This chain applies for all packets originating from firewall and going out of the server INPUT ⒸOUTPUT FORWARD This chain applies for all packets passing through the firewall from other hosts on the network. The host with iptables is neither the source nor destination of the packet: mainly used to route packets through the machines on the network. INPUT OUTPUT FORWARD

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Network Security

The word "network security" refers to a wide range of technology, devices, and processes. In its most basic form, it is a combination of rules and configurations that use both hardware and software technologies to safeguard the confidentiality, integrity, and accessibility of computer networks and data. Every company, regardless of sector, size or infrastructure, needs network security solutions to protect itself from the ever-increasing landscape of cyber threats that exist today.

Question

This Chain applies for all packets that are addressed to the firewall
INPUT
OUTPUT
FORWARD
This chain applies for all packets originating from firewall and going out of the server
O INPUT
ⒸOUTPUT
FORWARD
This chain applies for all packets passing through the firewall from other hosts on the network. The
host with iptables is neither the source nor destination of the packet: mainly used to route packets
through the machines on the network.
INPUT
OUTPUT
Ⓒ FORWARD
This jump target does not respond to a packet at all and does nothing with the packet. It an attack
sends a packet. they would not get any response.
ODROP
ⒸREJECT
This jump target responds with an ICMP Destination Unreachable back to the source. This indicates
that a server exists, which is beneficial for troubleshooting and for attackers.
DROP
O REJECT

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